/// 存储Key常量
abstract class ErrorCodeConstants {
  ErrorCodeConstants._();

  static const int success = 200;

  static const int cancel = 0xe1;

  static const int unknown = 0xe2;

  /// It occurs when url is opened timeout.
  static const int connectTimeout = 0xe3;

  /// It occurs when url is sent timeout.
  static const int sendTimeout = 0xe4;

  ///It occurs when receiving timeout.
  static const int receiveTimeout = 0xe5;

  // ... 继续拓展
}
